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I just replaced mine with an Interstate (MTP-H6) which is an exact fit - looks like a clone except color/label (even has the folding integrated lifting handles). I would imagine that anything other than an exact fit would be difficult to install - it is a tight fit and the hold-down bracket will not tolerate any dimensional changes.

Optima Batteries for V70 and XC70 generally

I am also considering an Optima spiral cell battery for my 2005 V70 T5 but I can't seem to find any good info regarding what needs to be done to make it fit. The Optima application guide says that they don't make a battery to fit my car but I find that hard to believe. Should I get a red top? yellow top? Also, I am expecting that some custom bracket work might be needed, but I like to see if anyone has been down this road before before I try to reinvent the wheel.

Try the new diehard platinum the best AGM battery out there, kicks optima's you know what and gives you a 4 yr free replacement and 8yr prorated, plus 880 cca or 990 cca if you can fit a 65 group size in a volvo lol, One thing though they weight a TON, like 3 times the weight of a regular battery and twice the weight of a optima

Try the new diehard platinum the best AGM battery out there, kicks optima's you know what and gives you a 4 yr free replacement and 8yr prorated, plus 880 cca or 990 cca if you can fit a 65 group size in a volvo lol, One thing though they weight a TON, like 3 times the weight of a regular battery and twice the weight of a optima

Hmmm, Might look into that - here in Texas - the batteries really cook - Ive been lucky to have been able to squeeze over 5 years out of one optima. Ill look into the sears unit - after all agm is agm. On the 745 I put on one of those thermal blanket/heat shield - Seems to keep the heat away from it.

I am thinking of putting an Optima battery in my xc, does anyone know which one I need (red, yellow or blue)?

Thank you,
Patrick

IIRC, Optima red top is recommended for normal automotive applications. The yellow and blue tops are for deep discharge situations. Also, the battery Volvo recommends for my MY04 XC70 is 600A/115 min. While the Optima red tops have higher CCA, none of the red tops (and only some of the blue and yellow tops) have the required reserve.

I just put a red top in my 68 Chevelle. It spins the 468 cubic inch, 500hp engine like a dremel tool. I can't see why an XC needs a large reserve, it it doesn't start with a flick of the key, there's something wrong besides a battery spec....